Coupling agent treatment device for electrolytic copper foil
By designing a coupling agent treatment device for electrolytic copper foil, and utilizing a combination of an immersion tank and a drip pipe, the problem of color difference on the non-pressed surface of the copper foil caused by uneven spraying of the coupling agent treatment solution was solved, thus achieving uniform coating and cleaning effect on the copper foil surface.
Patent Information
- Application Number
- CN202520453625.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-14
AI Technical Summary
In existing technologies, it is difficult to spray the coupling agent treatment solution evenly, resulting in color difference problems on the non-pressed surface of the copper foil.
A coupling agent treatment device for electrolytic copper foil was designed, including an immersion tank, a liquid supply pipe, a transmission roller, and a drip pipe. The liquid supply pipe continuously supplies liquid into the immersion tank, ensuring that the coupling agent treatment solution maintains horizontal contact with the copper foil pressing surface, thus avoiding friction between the tank wall and the copper foil. The drip pipe then drips water onto the non-pressed surface for cleaning, solving the color difference problem on the non-pressed surface.
This method achieves uniform coating of coupling agent on the copper foil lamination surface, avoids color difference on the non-lamination surface, reduces usage costs, and improves product appearance quality.
Smart Images
Figure CN223946052U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electrolytic copper foil technical field, especially a kind of coupling agent processing device of electrolytic copper foil. BACKGROUND
[0002] After copper foil is roughened, solidified, heat-resistant layer, oxidation-resistant layer and other surface treatments, coupling agent treatment is still needed to form organic film layer on the copper foil rough surface, to further improve the bonding force of copper foil and base material and the oxidation resistance of copper foil.
[0003] When coating the pressing surface of copper foil using traditional coupling agent round hole spraying process, the coupling agent treatment liquid will flow down after spraying and extrusion, and it is difficult to ensure the uniformity of coupling agent coating on the pressing surface. Moreover, the flowing coupling agent treatment liquid will accumulate at the transmission roller, and a large amount of treatment liquid will flow back to the non-pressing surface of the copper foil. On the other hand, the coupling agent treatment liquid sprayed on the pressing surface of the copper foil will carry liquid to the extrusion roller, and under the extrusion action, the coupling agent treatment liquid will spread to both sides along the extrusion roller and the transmission roller until it exceeds the edge of the copper foil. This part of the treatment liquid will spread in the opposite direction to the non-pressing surface of the copper foil, causing the non-pressing surface of the copper foil to contact the treatment liquid, and in severe cases, even carrying liquid to the subsequent guide roller, causing the coupling agent treatment liquid to spread in a large area on the non-pressing surface of the copper foil in the width direction of the copper foil. After the subsequent copper foil is dried, the part of the non-pressing surface that contacts the coupling agent treatment liquid will form a clear color difference with the part that does not contact the coupling agent treatment liquid, seriously affecting the appearance quality of the copper foil.
[0004] Therefore, it is necessary to develop a copper foil surface coupling agent treatment device to solve the above problems. UTILITY MODEL CONTENTS
[0005] To solve the problem of uneven spraying of coupling agent treatment liquid in the prior art, and the technical problem of local contact of the non-pressing surface of the copper foil with the coupling agent treatment liquid due to the diffusion of the coupling agent treatment liquid, which ultimately leads to serious color difference on the non-pressing surface of the copper foil, the utility model provides a coupling agent treatment device for electrolytic copper foil.
[0006] The technical solution of the utility model to solve the above technical problems is as follows:
[0007] The utility model provides a kind of coupling agent processing device of electrolytic copper foil, including immersion tank, liquid inlet pipe, transmission roller;Multiple transmission rollers are equipped, multiple transmission roller is sequentially spaced apart along the transmission direction of electrolytic copper foil, and transmission roller is equipped in the below of electrolytic copper foil, for supporting the compression surface of electrolytic copper foil;The immersion tank is arranged in the below of electrolytic copper foil, and there is gap between the immersion tank groove wall and the compression surface of electrolytic copper foil;The liquid inlet pipe is located in the immersion tank, for coupling agent treatment fluid is transported to immersion tank, the liquid level of coupling agent treatment fluid is higher than the groove wall of immersion tank, and the compression surface of electrolytic copper foil is contacted with coupling agent treatment fluid.
[0008] The coupling agent processing device of electrolytic copper foil provided by the utility model, the coupling agent treatment fluid is continuously liquid to the immersion tank by the liquid inlet pipe, when the liquid level of coupling agent treatment fluid is higher than the groove wall of immersion tank, the overflow state of coupling agent treatment fluid is maintained, and the compression surface of copper foil is evenly contacted with coupling agent treatment fluid in the immersion tank during operation, so that the uniformity of coupling agent coating on the compression surface of copper foil is effectively improved.
[0009] Based on the above technical solutions, the utility model can also make the following technical improvements:
[0010] Further, the outer diameter of the liquid inlet pipe is less than or equal to the depth of the immersion tank.
[0011] The beneficial effects of the above further technical solutions are that the outer wall of the liquid inlet pipe does not contact the compression surface of the electrolytic copper foil, avoiding damage to the electrolytic copper foil and uneven coupling agent coating.
[0012] Further, the immersion tank is arranged along the width direction of the electrolytic copper foil, and the length of the immersion tank is less than the width of the electrolytic copper foil.
[0013] The beneficial effects of the above further technical solutions are that the length of the immersion tank is less than the width of the copper foil, the coupling agent treatment fluid in the immersion tank only contacts the compression surface of the copper foil, and the compression surface of the copper foil is horizontally contacted with the coupling agent treatment fluid, without the phenomenon of the coupling agent treatment fluid flowing along the length direction of the copper foil, effectively avoiding the color difference problem caused by the non-compression surface of the copper foil contacting the coupling agent treatment fluid.
[0014] Further, the transmission roller includes a first transmission roller and a second transmission roller, and the immersion tank is located between the first transmission roller and the second transmission roller.
[0015] Further, it further includes a drip pipe and a squeeze roller, the drip pipe is arranged above the electrolytic copper foil, and the drip pipe is located between the immersion tank and the second transmission roller; the squeeze roller is arranged above the electrolytic copper foil, and the squeeze roller cooperates with the second transmission roller to squeeze the copper foil on the second transmission roller.
[0016] The beneficial effect of the further technical scheme is that the water dripping pipe drips water to the non-pressing surface of the copper foil, the copper foil carries the water to the squeezing roller, and the water has a certain cleaning effect on the edge of the squeezing roller and the edge of the non-pressing surface of the copper foil, thereby further effectively solving the color difference problem caused by the non-pressing surface of the copper foil being coated with an organic treatment agent.
[0017] Further, the water dripping pipe is arranged along the width direction of the electrolytic copper foil.
[0018] The beneficial effect of the further technical scheme is that the non-pressing surface of the copper foil is effectively cleaned in the width direction, and obvious color difference is avoided.
[0019] Further, the pipe wall of the liquid feeding pipe is uniformly or intermittently provided with a plurality of liquid feeding holes.
[0020] The beneficial effect of the further technical scheme is that the coupling agent treatment liquid in the liquid feeding pipe continuously flows into the liquid immersion tank through the liquid feeding holes, and the liquid level of the coupling agent treatment liquid in the liquid immersion tank is always higher than the upper edge of the tank wall.
[0021] Further, the liquid return tank is arranged below the liquid immersion tank, the liquid return tank is arranged along the width direction of the electrolytic copper foil, and the length of the liquid return tank is greater than the width of the electrolytic copper foil.
[0022] The beneficial effect of the further technical scheme is that the coupling agent treatment liquid overflowing from the liquid immersion tank is recycled through the liquid return tank, and the coupling agent treatment liquid flowing down along the second driving roller after the copper foil is squeezed by the squeezing roller is recycled, thereby reducing the use cost.
[0023] Compared with the prior art, the coupling agent treatment device for electrolytic copper foil has the following technical effects:
[0024] The coupling agent treatment device for electrolytic copper foil provided by the utility model, the coupling agent treatment liquid continuously flows into the liquid immersion tank through the liquid feeding pipe, when the liquid level of the coupling agent treatment liquid is higher than the upper edge of the tank wall of the liquid immersion tank, the coupling agent treatment liquid overflows and maintains the overflow state, and the pressing surface of the copper foil is uniformly contacted with the coupling agent treatment liquid in the liquid immersion tank during the operation process, thereby effectively improving the uniformity of the coupling agent coating on the pressing surface of the copper foil.
[0025] There is a gap between the upper edge of the tank wall of the liquid immersion tank and the pressing surface, so as to prevent the pressing surface of the copper foil from being damaged due to the friction between the upper edge of the tank wall and the pressing surface of the copper foil.
[0026] The length of the immersion tank is less than the width of the copper foil, the coupling agent treatment liquid in the immersion tank only contacts the pressing surface of the copper foil, and because there is a gap between the upper edge of the tank wall of the immersion tank and the pressing surface, the coupling agent treatment liquid with a high liquid level will fall due to gravity, and the running speed of the copper foil is relatively fast, so the coupling agent treatment liquid almost cannot diffuse to the surrounding along the pressing surface of the electrolytic copper foil, that is, the pressing surface of the copper foil is horizontally contacted with the coupling agent treatment liquid, and the phenomenon that the coupling agent treatment liquid flows along the length direction of the copper foil does not exist, so that the problem of color difference caused by the non-pressing surface of the copper foil contacting the coupling agent treatment liquid is effectively avoided;
[0027] The water dripping pipe drips water to the non-pressing surface of the copper foil, and the copper foil carries the water to the liquid squeezing roller, so that the liquid squeezing roller edge and the non-pressing surface edge of the copper foil have a certain cleaning effect, and the problem of color difference caused by the non-pressing surface of the copper foil being coated with the organic treatment agent is further effectively solved. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 A front view of a coupling agent treatment device for an electrolytic copper foil is shown in the embodiment of the present application.
[0029] Figure 2 A top view of the immersion tank is shown.
[0030] REFERENCE NUMERALS:
[0031] 1, immersion tank; 2, liquid inlet pipe; 3, water dripping pipe; 4, liquid squeezing roller; 5, first transmission roller; 6, second transmission roller; 7, liquid return tank; 8, electrolytic copper foil; 9, liquid inlet hole. DETAILED DESCRIPTION
[0032] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the description. Although the description of the present application will be introduced together with the preferred embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0033] Reference Figures 1-2A coupling agent treatment device for electrolytic copper foil includes an immersion tank 1, an upper liquid pipe 2, a first drive roller 5, a second drive roller 6, a drip pipe 3, a squeezing roller 4, and a return liquid tank 7. The first drive roller 5 and the second drive roller 6 are spaced apart along the transmission direction of the electrolytic copper foil 8, and are located below the electrolytic copper foil 8 to support the pressing surface of the electrolytic copper foil 8 and convey the electrolytic copper foil 8. Specifically, the electrolytic copper foil 8 is placed horizontally, with the upper surface being the non-pressing surface. Figure 1 The side with the upward arrow in the middle), the lower side is the pressing surface ( Figure 1 (On the side where the downward arrow is located), the first drive roller 5 and the second drive roller 6 are both used to support the pressing surface of the electrolytic copper foil 8; the immersion tank 1 is located below the electrolytic copper foil 8 (i.e., on the side of the pressing surface) and along the transmission direction of the electrolytic copper foil 8. The immersion tank 1 is located between the first drive roller 5 and the second drive roller 6, and there is a gap between the upper edge of the tank wall of the immersion tank 1 and the pressing surface of the electrolytic copper foil; the upper liquid pipe 2 and the immersion tank 1 are provided with coupling agent treatment liquid. The upper liquid pipe 2 is located in the immersion tank 1 and is used to transport the coupling agent treatment liquid into the immersion tank 1. The liquid level of the coupling agent treatment liquid is higher than the upper edge of the tank wall of the immersion tank 1. The coupling agent treatment liquid is in contact with the pressing surface of the electrolytic copper foil. During operation, the pressing surface of the electrolytic copper foil 8 is in uniform contact with the coupling agent treatment liquid in the immersion tank 1, thereby effectively improving the uniformity of the coupling agent coating on the pressing surface of the electrolytic copper foil 8.
[0034] The gap is 1-5mm. If the gap is too small, friction will occur between the upper edge of the tank wall and the pressing surface of the electrolytic copper foil 8. If the gap is too large, the coupling agent treatment liquid will not be able to contact the pressing surface, affecting the uniformity of the coupling agent coating.
[0035] The upper liquid pipe 2 is located in the middle of the immersion tank 1, and the outer diameter of the upper liquid pipe 2 is less than or equal to the depth of the immersion tank 1. Multiple upper liquid holes 9 are evenly distributed on the wall of the upper liquid pipe 2, through which the coupling agent treatment solution flows along... Figure 1 The coupling agent treatment solution is continuously supplied to the immersion tank 1 through the liquid supply pipe. When the liquid level of the coupling agent treatment solution is higher than the upper edge of the immersion tank 1 wall, the coupling agent treatment solution overflows. During operation, the pressing surface of the electrolytic copper foil 8 is in uniform contact with the coupling agent treatment solution in the immersion tank 1, thereby effectively improving the uniformity of coupling agent coating on the pressing surface of the copper foil 8.
[0036] The immersion tank 1 is arranged along the width direction of the electrolytic copper foil 8, so that the coupling agent treatment liquid is coated on the electrolytic copper foil 8 in the width direction; and the length of the immersion tank 1 is less than the width of the electrolytic copper foil 8, so that the coupling agent treatment liquid in the immersion tank 1 only contacts the pressing surface of the electrolytic copper foil 8, and the pressing surface of the electrolytic copper foil 8 is horizontally contacted with the coupling agent treatment liquid, and the phenomenon that the coupling agent treatment liquid flows along the length direction of the copper foil does not exist, thereby effectively avoiding the color difference problem caused by the non-pressing surface of the electrolytic copper foil 8 contacting the coupling agent treatment liquid.
[0037] The drip pipe 3 is arranged above the electrolytic copper foil 8 (i.e. the non-pressing surface side), the drip pipe 3 is located between the immersion tank 1 and the second driving roller 6, and the drip pipe 3 is arranged along the width direction of the electrolytic copper foil 8; the squeezing roller 4 is arranged above the electrolytic copper foil 8 (i.e. the non-pressing surface side), the squeezing roller 4 cooperates with the second driving roller 6 and squeezes the copper foil on the second driving roller 6, and the drip pipe 3 drips water along the width direction of the electrolytic copper foil 8. Figure 1 The drip pipe 3 drips water along the downward dashed arrow direction to the non-pressing surface of the electrolytic copper foil 8, the electrolytic copper foil 8 carries the water to the squeezing roller 4, and the water has a certain cleaning effect on the edge of the squeezing roller 4 and the non-pressing surface edge of the electrolytic copper foil 8, thereby further effectively solving the color difference problem caused by the non-pressing surface of the electrolytic copper foil 8 being coated with the organic treatment agent.
[0038] The liquid return tank 7 is located below the immersion tank 1, the liquid return tank 7 is arranged along the width direction of the electrolytic copper foil 8, and the length of the liquid return tank 7 is greater than the width of the electrolytic copper foil 8. The driving direction of the electrolytic copper foil 8 is the length direction of the electrolytic copper foil 8, and the direction perpendicular to the driving direction in the same plane is the width direction. The projection of the immersion tank 1 and the second driving roller 6 in the horizontal plane falls into the liquid return tank 7, the coupling agent treatment liquid overflowed from the immersion tank 1 is recycled through the liquid return tank 7, the coupling agent treatment liquid flowing down along the second driving roller 6 due to the squeezing of the electrolytic copper foil 8 on the second driving roller 6 by the squeezing roller 4 is recycled, and the use cost is reduced.
[0039] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An electrolytic copper foil coupling agent treatment device characterized by comprising: The application relates to a coupling agent treatment device for electrolytic copper foil, which comprises an immersion tank (1), a liquid feeding pipe (2) and driving rollers; the driving rollers are arranged in sequence and at intervals along the driving direction of the electrolytic copper foil (8) and are arranged below the electrolytic copper foil (8) to support the pressing surface of the electrolytic copper foil (8); the immersion tank (1) is arranged below the electrolytic copper foil (8) and the tank wall of the immersion tank (1) is arranged along the gap between the pressing surface of the electrolytic copper foil (8); the liquid feeding pipe (2) is arranged in the immersion tank (1) to feed the coupling agent treatment liquid into the immersion tank (1), the liquid level of the coupling agent treatment liquid is higher than the tank wall of the immersion tank (1), and the coupling agent treatment liquid is arranged in contact with the pressing surface of the electrolytic copper foil (8).
2. The coupling agent treatment device for electrolytic copper foil according to claim 1, characterized by The outer diameter of the liquid feeding pipe (2) is smaller than or equal to the depth of the immersion tank (1).
3. The coupling agent treatment device for electrolytic copper foil according to claim 1, characterized by The immersion tank (1) is arranged along the width direction of the electrolytic copper foil (8) and the length of the immersion tank (1) is smaller than the width of the electrolytic copper foil (8).
4. The coupling agent treatment device for electrolytic copper foil according to claim 1, characterized by The driving rollers comprise first driving rollers (5) and second driving rollers (6), and the immersion tank (1) is arranged between the first driving rollers (5) and the second driving rollers (6).
5. The coupling agent treatment device for electrolytic copper foil according to claim 4, characterized by The device further comprises a water dripping pipe (3) and a squeezing roller (4); the water dripping pipe (3) is arranged above the electrolytic copper foil (8) and is arranged between the immersion tank (1) and the second driving rollers (6); the squeezing roller (4) is arranged above the electrolytic copper foil (8) and cooperates with the second driving rollers (6) to squeeze the copper foil on the second driving rollers (6).
6. The coupling agent treatment device for electrolytic copper foil according to claim 5, characterized by The water dripping pipe (3) is arranged along the width direction of the electrolytic copper foil (8).
7. The coupling agent treatment device for electrolytic copper foil according to any one of claims 1 to 6, characterized by The pipe wall of the liquid feeding pipe (2) is uniformly or at intervals provided with a plurality of liquid feeding holes (9).
8. The coupling agent treatment apparatus for electrolytic copper foil according to any one of claims 1 to 6, characterized by The device further comprises a liquid returning tank (7); the liquid returning tank (7) is arranged below the immersion tank (1) and is arranged along the width direction of the electrolytic copper foil (8) and the length of the liquid returning tank (7) is greater than the width of the electrolytic copper foil (8).